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1. Search the forum. You can do this from the Advanced Search Page or from our Google Custom Search, which will search the entire PKP site. If you are encountering an error, we especially recommend searching the forum for said error.

2. Check the FAQ to see if your question or error has already been resolved. Please note that this FAQ is OJS-centric, but most issues are applicable to both platforms.

3. Post a question, but please, only after trying the above two solutions. If it's a workflow or usability question you should probably post to the OCS Conference Support and Discussion subforum; if you have a development question, try the OCS Development subforum.

I believe you can see more details of the error if you add the following line to your index.php, right after the <?php line:

ini_set('display_errors', E_ALL);

I can't login to your OCS site since I don't have your login info and I can't create a user account since there's no conference on your site to register for. So I wasn't able to see the phpinfo page or try going to User Home to see the error.

Also, I can access my backend database via some of the pages. I was able to change my password, update my user profile, etc. I just haven't been able to do things related to the Creating or Viewing Conferences (kind of important part of this tool )

What is PHP's memory_limit set to? Many sites use a default of 8M, and OCS often needs more, especially for administrative tasks like creating a conference. (Actual memory requirements depend heavily on the version of PHP you're using, but 16M seems to work well.)

ConfigurationPHP CoreDirective Local Value Master Value allow_call_time_pass_reference Off Off allow_url_fopen Off Off allow_url_include Off Off always_populate_raw_post_data Off Off arg_separator.input & & arg_separator.output & & asp_tags Off Off auto_append_file no value no value auto_globals_jit On On auto_prepend_file no value no value browscap no value no value default_charset no value no value default_mimetype text/html text/html define_syslog_variables Off Off disable_classes no value no value disable_functions no value no value display_errors On On display_startup_errors Off Off doc_root no value no value docref_ext no value no value docref_root no value no value enable_dl On On error_append_string no value no value error_log no value no value error_prepend_string no value no value error_reporting 6143 6135 expose_php On On extension_dir ./ ./ file_uploads On On highlight.bg #FFFFFF #FFFFFF highlight.comment #FF8000 #FF8000 highlight.default #0000BB #0000BB highlight.html #000000 #000000 highlight.keyword #007700 #007700 highlight.string #DD0000 #DD0000 html_errors On On ignore_repeated_errors Off Off ignore_repeated_source Off Off ignore_user_abort Off Off implicit_flush Off Off include_path .:/###HOMEPATH###/jctonline/conference/includes:/###HOMEPATH###/conference/classes:/###HOMEPATH###/jctonline/conference/pages:/###HOMEPATH###/jctonline/conference/lib:/###HOMEPATH###/jctonline/conference/lib/smarty:.:/usr/local/php5/lib/php:/usr/local/lib/php .:/usr/local/php5/lib/php:/usr/local/lib/php log_errors Off Off log_errors_max_len 1024 1024 magic_quotes_gpc Off Off magic_quotes_runtime Off Off magic_quotes_sybase Off Off mail.force_extra_parameters no value no value max_execution_time 30 30 max_input_nesting_level 64 64 max_input_time 60 60 memory_limit 90M 90M open_basedir no value no value output_buffering 4096 4096 output_handler no value no value post_max_size 100M 100M precision 14 14 realpath_cache_size 16K 16K realpath_cache_ttl 120 120 register_argc_argv On On register_globals Off Off register_long_arrays Off Off report_memleaks On On report_zend_debug On On safe_mode Off Off safe_mode_exec_dir no value no value safe_mode_gid Off Off safe_mode_include_dir no value no value sendmail_from no value no value sendmail_path /usr/sbin/sendmail -t -i /usr/sbin/sendmail -t -i serialize_precision 100 100 short_open_tag On On SMTP localhost localhost smtp_port 25 25 sql.safe_mode Off Off track_errors Off Off unserialize_callback_func no value no value upload_max_filesize 100M 100M upload_tmp_dir no value no value user_dir no value no value variables_order GPCS GPCS xmlrpc_error_number 0 0 xmlrpc_errors Off Off y2k_compliance On On zend.ze1_compatibility_mode Off Off

Directive Local Value Master Value mysql.allow_persistent On On mysql.connect_timeout 60 60 mysql.default_host no value no value mysql.default_password no value no value mysql.default_port no value no value mysql.default_socket no value no value mysql.default_user no value no value mysql.max_links Unlimited Unlimited mysql.max_persistent Unlimited Unlimited mysql.trace_mode Off Off

Directive Local Value Master Value mysqli.default_host no value no value mysqli.default_port 3306 3306 mysqli.default_pw no value no value mysqli.default_socket no value no value mysqli.default_user no value no value mysqli.max_links Unlimited Unlimited mysqli.reconnect Off Off

PHP LicenseThis program is free software; you can redistribute it and/or modify it under the terms of the PHP License as published by the PHP Group and included in the distribution in the file: LICENSE

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

If you did not receive a copy of the PHP license, or have any questions about PHP licensing, please contact license@php.net.

Hmm, in that case, I'd still suspect Zend Optimizer. Even with all optimization passes disabled, you may still be encountering the debug_backtrace bug. Could you try temporarily removing all references to Zend Optimizer from your php.ini file? These lines should look something like:

Glad to hear it's working! You can get Zend Optimizer working again either by upgrading it to the most recent release (which I understand has been fixed) or by disabling the parts of OCS that use the Optimizer. To do the latter, you'll need to edit a few files: